128828560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:273

約数の個数: 160

約数和(自身を含む): 363976704

約数和(自身を除く): 235148144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 41, 56, 62, 70, 80, 82, 112, 124, 140, 155, 164, 181, 205, 217, 248, 280, 287, 310, 328, 362, 410, 434, 496, 560, 574, 620, 656, 724, 820, 868, 905, 1085, 1148, 1240, 1267, 1271, 1435, 1448, 1640, 1736, 1810, 2170, 2296, 2480, 2534, 2542, 2870, 2896, 3280, 3472, 3620, 4340, 4592, 5068, 5084, 5611, 5740, 6335, 6355, 7240, 7421, 8680, 8897, 10136, 10168, 11222, 11480, 12670, 12710, 14480, 14842, 17360, 17794, 20272, 20336, 22444, 22960, 25340, 25420, 28055, 29684, 35588, 37105, 39277, 44485, 44888, 50680, 50840, 51947, 56110, 59368, 71176, 74210, 78554, 88970, 89776, 101360, 101680, 103894, 112220, 118736, 142352, 148420, 157108, 177940, 196385, 207788, 224440, 230051, 259735, 296840, 314216, 355880, 392770, 415576, 448880, 460102, 519470, 593680, 628432, 711760, 785540, 831152, 920204, 1038940, 1150255, 1571080, 1610357, 1840408, 2077880, 2300510, 3142160, 3220714, 3680816, 4155760, 4601020, 6441428, 8051785, 9202040, 12882856, 16103570, 18404080, 25765712, 32207140, 64414280, 128828560]

約数ペア:

[(1, 128828560), (2, 64414280), (4, 32207140), (5, 25765712), (7, 18404080), (8, 16103570), (10, 12882856), (14, 9202040), (16, 8051785), (20, 6441428), (28, 4601020), (31, 4155760), (35, 3680816), (40, 3220714), (41, 3142160), (56, 2300510), (62, 2077880), (70, 1840408), (80, 1610357), (82, 1571080), (112, 1150255), (124, 1038940), (140, 920204), (155, 831152), (164, 785540), (181, 711760), (205, 628432), (217, 593680), (248, 519470), (280, 460102), (287, 448880), (310, 415576), (328, 392770), (362, 355880), (410, 314216), (434, 296840), (496, 259735), (560, 230051), (574, 224440), (620, 207788), (656, 196385), (724, 177940), (820, 157108), (868, 148420), (905, 142352), (1085, 118736), (1148, 112220), (1240, 103894), (1267, 101680), (1271, 101360), (1435, 89776), (1448, 88970), (1640, 78554), (1736, 74210), (1810, 71176), (2170, 59368), (2296, 56110), (2480, 51947), (2534, 50840), (2542, 50680), (2870, 44888), (2896, 44485), (3280, 39277), (3472, 37105), (3620, 35588), (4340, 29684), (4592, 28055), (5068, 25420), (5084, 25340), (5611, 22960), (5740, 22444), (6335, 20336), (6355, 20272), (7240, 17794), (7421, 17360), (8680, 14842), (8897, 14480), (10136, 12710), (10168, 12670), (11222, 11480)]